mirror of https://github.com/hak5/openwrt.git
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/delay.h>
|
||
|
|
#include <linux/bootmem.h>
|
||
|
|
#include <linux/ioport.h>
|
||
|
|
#include <linux/pm.h>
|
||
|
|
#include <asm/bootinfo.h>
|
||
|
|
#include <asm/time.h>
|
||
|
|
#include <asm/reboot.h>
|
||
|
|
#include <asm/cacheflush.h>
|
||
|
|
#include <bcm63xx_board.h>
|
||
|
|
#include <bcm63xx_cpu.h>
|
||
|
|
#include <bcm63xx_regs.h>
|
||
|
|
#include <bcm63xx_io.h>
|
||
|
|
|
||
|
|
void bcm63xx_machine_halt(void)
|
||
|
|
{
|
||
|
|
printk(KERN_INFO "System halted\n");
|
||
|
|
while (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void bcm6348_a1_reboot(void)
|
||
|
|
{
|
||
|
|
u32 reg;
|
||
|
|
|
||
|
|
/* soft reset all blocks */
|
||
|
|
printk(KERN_INFO "soft-reseting all blocks ...\n");
|
||
|
|
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
|
||
|
|
reg &= ~SOFTRESET_6348_ALL;
|
||
|
|
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
|
||
|
|
mdelay(10);
|
||
|
|
|
||
|
|
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
|
||
|
|
reg |= SOFTRESET_6348_ALL;
|
||
|
|
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
|
||
|
|
mdelay(10);
|
||
|
|
|
||
|
|
/* Jump to the power on address. */
|
||
|
|
printk(KERN_INFO "jumping to reset vector.\n");
|
||
|
|
/* set high vectors (base at 0xbfc00000 */
|
||
|
|
set_c0_status(ST0_BEV | ST0_ERL);
|
||
|
|
/* run uncached in kseg0 */
|
||
|
|
change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
|
||
|
|
__flush_cache_all();
|
||
|
|
/* remove all wired TLB entries */
|
||
|
|
write_c0_wired(0);
|
||
|
|
__asm__ __volatile__(
|
||
|
|
"jr\t%0"
|
||
|
|
:
|
||
|
|
: "r" (0xbfc00000));
|
||
|
|
while (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void bcm63xx_machine_reboot(void)
|
||
|
|
{
|
||
|
|
u32 reg;
|
||
|
|
|
||
|
|
/* mask and clear all external irq */
|
||
|
|
reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
|
||
|
|
reg &= ~EXTIRQ_CFG_MASK_ALL;
|
||
|
|
reg |= EXTIRQ_CFG_CLEAR_ALL;
|
||
|
|
bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
|
||
|
|
|
||
|
|
if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1))
|
||
|
|
bcm6348_a1_reboot();
|
||
|
|
|
||
|
|
printk(KERN_INFO "triggering watchdog soft-reset...\n");
|
||
|
|
reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
|
||
|
|
reg |= SYS_PLL_SOFT_RESET;
|
||
|
|
bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
|
||
|
|
while (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __bcm63xx_machine_reboot(char *p)
|
||
|
|
{
|
||
|
|
bcm63xx_machine_reboot();
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* return system type in /proc/cpuinfo
|
||
|
|
*/
|
||
|
|
const char *get_system_type(void)
|
||
|
|
{
|
||
|
|
static char buf[128];
|
||
|
|
snprintf(buf, sizeof (buf), "bcm63xx/%s (0x%04x/0x%04X)",
|
||
|
|
board_get_name(),
|
||
|
|
bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev());
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init plat_time_init(void)
|
||
|
|
{
|
||
|
|
mips_hpt_frequency = bcm63xx_get_cpu_freq() / 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init plat_mem_setup(void)
|
||
|
|
{
|
||
|
|
add_memory_region(0, bcm63xx_get_memory_size(), BOOT_MEM_RAM);
|
||
|
|
|
||
|
|
_machine_halt = bcm63xx_machine_halt;
|
||
|
|
_machine_restart = __bcm63xx_machine_reboot;
|
||
|
|
pm_power_off = bcm63xx_machine_halt;
|
||
|
|
|
||
|
|
set_io_port_base(0);
|
||
|
|
ioport_resource.start = 0;
|
||
|
|
ioport_resource.end = ~0;
|
||
|
|
|
||
|
|
board_setup();
|
||
|
|
}
|
||
|
|
|
||
|
|
int __init bcm63xx_register_devices(void)
|
||
|
|
{
|
||
|
|
return board_register_devices();
|
||
|
|
}
|
||
|
|
|
||
|
|
arch_initcall(bcm63xx_register_devices);
|